byobu-ugraph (1) - Linux Manuals

byobu-ugraph: helper script for notification history graphs


byobu-ugraph - helper script for notification history graphs


byobu-ugraph is a helper script that can be used to create history graphs


byobu-ugraph [options] [command [args...]]


  -f <file>   : File to read data points from.  (only required if no command specified).
  -h          : Show this help.
  -m <num>    : Minimum value (default=$min_default).
  -n          : Supress output of newline character.
  -p <points> : Specify number of data points in graph (default=$points_default).
  -r          : Do not rotate file <file> (default is to rotate).  Option implies file <file> should not be written to so a command cannot follow script options in this case.
  -t <theme>  'byobu-ulevel' theme to use (default=$theme_default).
  -x <num>    : Maximum value (default=$max_default).


Using byobu-ugraph to run a command, rotate log and display graph.

Here we specify a command to display available memory. Trailing echo adds a required newline Note no filename specified.

 byobu-ugraph "(/usr/lib/byobu/mem_used | sed -e 's/% //g';echo)"

Using byobu-ugraph just to rotate log and display the graph

 awk '{ print $1}' /proc/loadavg >> $file
 Note: we need to specify what we consider to be a "reasonable" maximum load
 byobu-ugraph -m 3.0 -f $file


If you specify 'command', care must be taken with shell quoting to avoid expansion prior to this script running the command.

If '-r' is not specified, the file <file> will be rotated such that at most <points> lines are retained on each invocation of this script.


This utility was written by James Hunt <james.hunt [at]>, and this manpage was written by Dustin Kirkland <kirkland [at]> for Ubuntu systems (but may be used by others). Permission is granted to copy, distribute and/or modify this document and the utility under the terms of the GNU General Public License, Version 3 published by the Free Software Foundation.

The complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL on Debian/Ubuntu systems, or in /usr/share/doc/fedora-release-*/GPL on Fedora systems, or on the web at